Analog oscilloscope repair 4 - Finally working!
34:17
Analog oscilloscope repair - tons of problems!
26:24
1000V insulation tester (Ganz XS)
24:56
Function generator repair (Hungarian TR-0458/B)
27:38
Old bench power supply restoration (AUL210 from 1983)
16:02
Valve Amp - Faulty Valve - Parasytic Oscillation.
18:06
$15 aliexpress 40W USB-C charger test
11:29
Another IMRC module repair - tricky this time
13:24